| /* |
| * Copyright (c) 1999, 2013, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| * |
| */ |
| |
| #ifndef SHARE_VM_COMPILER_ABSTRACTCOMPILER_HPP |
| #define SHARE_VM_COMPILER_ABSTRACTCOMPILER_HPP |
| |
| #include "ci/compilerInterface.hpp" |
| |
| class AbstractCompiler : public CHeapObj<mtCompiler> { |
| private: |
| volatile int _num_compiler_threads; |
| |
| protected: |
| volatile int _compiler_state; |
| // Used for tracking global state of compiler runtime initialization |
| enum { uninitialized, initializing, initialized, failed, shut_down }; |
| |
| // This method returns true for the first compiler thread that reaches that methods. |
| // This thread will initialize the compiler runtime. |
| bool should_perform_init(); |
| |
| public: |
| AbstractCompiler() : _compiler_state(uninitialized), _num_compiler_threads(0) {} |
| |
| // This function determines the compiler thread that will perform the |
| // shutdown of the corresponding compiler runtime. |
| bool should_perform_shutdown(); |
| |
| // Name of this compiler |
| virtual const char* name() = 0; |
| |
| // Missing feature tests |
| virtual bool supports_native() { return true; } |
| virtual bool supports_osr () { return true; } |
| virtual bool can_compile_method(methodHandle method) { return true; } |
| #if defined(TIERED) || ( !defined(COMPILER1) && !defined(COMPILER2) && !defined(SHARK)) |
| virtual bool is_c1 () { return false; } |
| virtual bool is_c2 () { return false; } |
| virtual bool is_shark() { return false; } |
| #else |
| #ifdef COMPILER1 |
| bool is_c1 () { return true; } |
| bool is_c2 () { return false; } |
| bool is_shark() { return false; } |
| #endif // COMPILER1 |
| #ifdef COMPILER2 |
| bool is_c1 () { return false; } |
| bool is_c2 () { return true; } |
| bool is_shark() { return false; } |
| #endif // COMPILER2 |
| #ifdef SHARK |
| bool is_c1 () { return false; } |
| bool is_c2 () { return false; } |
| bool is_shark() { return true; } |
| #endif // SHARK |
| #endif // TIERED |
| |
| // Customization |
| virtual void initialize () = 0; |
| |
| void set_num_compiler_threads(int num) { _num_compiler_threads = num; } |
| int num_compiler_threads() { return _num_compiler_threads; } |
| |
| // Get/set state of compiler objects |
| bool is_initialized() { return _compiler_state == initialized; } |
| bool is_failed () { return _compiler_state == failed;} |
| void set_state (int state); |
| void set_shut_down () { set_state(shut_down); } |
| // Compilation entry point for methods |
| virtual void compile_method(ciEnv* env, ciMethod* target, int entry_bci) { |
| ShouldNotReachHere(); |
| } |
| |
| |
| // Print compilation timers and statistics |
| virtual void print_timers() { |
| ShouldNotReachHere(); |
| } |
| }; |
| |
| #endif // SHARE_VM_COMPILER_ABSTRACTCOMPILER_HPP |